Rovibrationally resolved, Fourier‐transform near infrared spectroscopy of the ν 1 and ν 2 vibrations of the HCl dimer in a supersonic jet Academic Article uri icon


  • We have recorded the high-resolution (0.007 cm-1) Fourier-transform near infrared absorption spectrum of the symmetric 35Cl-35Cl, and the mixed 35Cl-37Cl isotopomers of the hydrogen chloride dimer in a supersonic jet. The spectrum was recorded under a low effective rotational temperature (≈20 K). Rovibrational analysis of the observed spectra has been performed for the K a″=0 subbands of the v1+ and v 1- perpendicular-type bands centered at 2890 and 2879 cm-1, respectively. The Ka″=0 and 1 parallel-type subbands of the v2- at 2839 cm-1 and v 2+ at 2857 cm-1 have also been analyzed. Furthermore, we have observed and investigated the (H 35Cl) 2v1+, Ka″=1, ΔK=-1 rovibrational transition centered near 2869 cm-1. The results are compared with spectra previously recorded using difference frequency tunable laser spectrometers both in a supersonic slit jet and in an equilibrium gas phase mixture to demonstrate the advantages and limitations of the FTIR technique. © 1994 American Institute of Physics.

author list (cited authors)

  • Meads, R. F., McIntosh, A. L., Arnó, J. I., Hartz, C. L., Lucchese, R. R., & Bevan, J. W.

citation count

  • 18

publication date

  • September 1994